Combine all ingredients for the sauce in a small bowl.
Sauté shrimp or chicken in a skillet until cooked and remove to a plate.
Sauté onion in oil until softened.
Add zoodles to the pan and make a spot for the egg.
Cook 30 seconds, add sauce and stir.
Add chicken/shrimp back to the pan.
Cook 1 more minute or until zoodles starting to soften.
Top with chopped peanuts, cilantro, limed wedges, and extra chili sauce.